Car-coupling for pit-cars.



A. KOLISEK & M. SOBALA.

CAR COUPLING FOR PIT CARS.

APPLICATION HLED FEB. 25. 1914.

Patented Nov. 13, 1917.

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w w a J W m a Q 6 HWWW l6 J5 INVENII'OHfi M.506a/a ATTORNEY. I

ANTON KOLISEK AND MARTIN SOIBALA, OF AMSTERDAM, OHIO.

CAR-COUPLING FOR- PIT-CARS.

Specification of Letters Patent.

Patented Nov. 13, 1917.

Application filed February 25, 1914. Serial No. 820,965.

T all whom it may concern Be it known that we, ANTON KoLrsnK-and- MARTINSonaLA, subjects ofthe'Emperor of Austria, county of Jetl erson andState of Ohio, have invented certain new and useful Improvements inCar-Couplin s for Pit-Cars, of which the following-is a specification,reference being had th rein to the accompanyingdrawing.

This invention relates to car couplers for pit cars, and has for itsobject to provide a coupler, in a manner as hereinafter set forth,

for quickly and conveniently connecting the set up and comparativelyinexpensive to,

manufacture.

With the foregoing and other objects in view, the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically described and illustrated in theaccompanying drawings,wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which come within the scope of the claims hereuntoappended.

In the drawings wherein like reference characters denote correspondingparts throughout the several views:

Figure 1 is a longitudinal sectional view of apair of pit cars, brokenaway, showing the adaptation therewith of a coupler in ac cordance withthis invention,

Fig. 2'is a top plan,

Fig. the coupler, and

Fig. i is a sectional plan.

Referring to thedrawings in detail, 5 and 6 denote a pair of pit carsprovided respectively with end sills 7 and 8, and each of said sills isformed with a centrally disposed vertically extending opening 9.

Secured to the bottom 10 of the cars as well as to the sills 7 and Sare-draw heads 11 and 12, which are oppositely disposed with respect toeach other. The securing means between the draw heads and bottoms 10 areindicated at 13, and the securing residing at Amsterdam, in the 3 is alongitudinal sectional view of means betweenthe draw heads and sills 7and 8 are indicated 'atl i; Each draw head is rectangular in" contourand closed at its rear as at 15'. The draw head-'11 is provided withachamber 16 a passage 17 communi eating with said'chamber'and afiar-ingopen-- ing 18 which terminates at its rear in the passage 17. The top ofthe draw head 11 is formed with an opening whereby access can be had tothe chamber 16,-and said opening is closed by a plate 19, mounted uponshoulders 20 and flush with the upper face of the draw head 11. Theplate 19 is maintained inposition by the bottom 10 of the car. The drawhead is furthermore provided with'a. vertically disposed opening 21which intersects the outer end ofthe passage 17 andthe top of said drawhead 11, and has a vertically disposed integral hollow boss the openingin the latter forming a continuation of the opening 21. The rear wall ofthe chamber lo'has a longitudinal lug 23, which opposes a longitudinallug 2 1 formed on the inner end of a slide block 25, positioned in thepassage 17. T he chamber 16 is of greater height than the passage 17,and each side wall of the chamber 16 is formed with a longitudinalgroove 26, whichiorms a continuation of the passage 17 and which furtherprovide shoulders 27.

Arranged within the chamber 16.; surrounding a lug 23 and connected'tothe lug 2% is a coiled expansion spring 28, the function of which istomove the slide outwardly;

The outward movement of the slide block 25 is limited by a pin '29,which is carried by the lug 24k and abuts against the shoul ders 27. I V

The draw head 12 has its top provided with an opening closed by aplatethe latter being seated upon shoulders 31 and 32. The plate 30 ismaintained in position by the bottom 10 of a car. The closed end 15 ofthe draw head 12 is formed with a longitudinally extending lug 32 towhich is attached-the inner end of'an expansion spring 3 1, which is ofless strengththan the 5 spring 28. The spring 31 at its other endengages with'a lug35 formed on-the inner end-of a coupling bar 37normally positioned in the chamber 38 formed in the draw head 12 andnormally extending through a flaring opening 39, which communicates withthe chamber 38. The spring 31 is mounted in the chamber 38. The drawhead 12 is provided with a vertically disposed epening 40 whichintersects the inner end of the opening 35, and the top of the draw head12 has an apertured boss 41, the opening therein forming a continuationof the opening 40. The boss 41 is of less height than the boss 22.

The coupling bar 37 has each end thereof enlarged as at 42 and 43. andthe former is provided with an oval-shaped open1ng 44, and the latterwith an oval-shaped opening 45. The coupling bar 37 is normallyposltioned within the draw head 12 and extending through the boss 41 andopenings 40, 44 is a coupling pin 46 having a head 47 seated upon theboss 41. The coupling bar 37 is connected to the draw head 11 by acoupling pin 48 which extends through the boss 22 and openings 21 and 43and said pin 48 is provided with a head 49, which when the pin 48extends through the openings 21 and 43, is seated upon the boss 22. Theheads 47 and 49, when the pins 46 and 48 extend through the couplingbars are positioned respectively in the openings 9, or rather are housedin said openlngs, as clearly illustrated in Fig. 1, the height of theheads being less than the height of the openings. The head 49 isprovided with an eye 50 to which is attached a flexible member 51, thelatter being connected to an uncoupling lever 52, pivotally supportedupon the car 5 as at 53. The lever 52 15 formed at each end with ahandle 54. It will be assumed that the pin 48 has been removed from thecoupling bar 37 and that the end 43 of said coupling bar is out of thecross head 11. Under such conditions the block 25 has been shifted to aposition intersecting the opening 21. The pin 48 rests upon the block25. The position of the coupling bar 37 with respect to the cross head12 will be such that the pin 46 is at the outer end of the opening 44,as illustrated in Fig. 4. As the car 6 is shifted toward car 5, the bar37 enters the opening 18 and abuts against the block 25. When the bar 37abuts against the block 25, the latter is shifted so that the pin 48 candrop down through the opening 45 and the lower portion of the opening21, whereby the two cars are coupled. lVhen the pin 48 is shifted fromthe opening 45, the action of the spring 28 will shift the block 25, thelatter in turn shifting the bar 37 outwardly, as the strength of thespring 28 is greater than the strength of the spring 24.

What we claim is 1. A coupler for pit cars comprising the combinationwith a pair of draw heads, of a spring controlled coupling bar iountedin one of said draw heads, expansion springs bearing against each end ofsaid coupling bar, said spring having a different pressure, saidcoupling bar provided with a pair of openings, and coupling pins eX-tending through the draw heads and said openings for connecting the barto the draw heads.

2. A coupler for pit cars comprising a pair ofdraw heads adapted to besecured to a pair of cars, a shiftable coupling bar normally connectedto one of said draw heads and capable of projecting from the other ofsaid draw heads, an expansion spring connected to the coupling bar andto that draw head in which the draw bar is normally positioned, a slideblock mounted in the other of said draw heads, an expansion springbearing against said block and of greater strength than the otherspring, and means for connecting the coupling bars to that draw headprovided with said block, said block capable of shifting said couplingbar from that draw head provided with a spring when the coupling bar isdisconnect-- ed therefrom.

3. A coupler for pit cars comprising a pair of draw heads adapted to besecured to a pair of cars, a shiftable coupling bar normally connectedto one of said draw heads and capable of projecting from the other ofsaid draw heads, an expansion spring connected to the coupling bar andto that draw head in which the draw bar is normally positioned, a slideblock mounted in the other of said draw heads, an expansion springbearing against said block and of greater strength than the otherspring, means for connecting the coupling bar to that draw head providedwith said block, said block capable of shifting said coupling bar fromthat draw head provided with a spring when the coupling bar isdisconnected therefrom, and means for limiting the shifting movement ofsaid block.

In testnnony whereof we aflix our signatures in the presence of twowitnesses.

' ANTON KOLISEK. MARTIN SOBALA.

Witnesses:

Gno. M. VISNICH, THOMAS STONE.

Copies of this patent mav be obtained for five cents each. by addressingthe Commissioner of Patents, Washington, D. C.

